зеркало из https://github.com/mozilla/gecko-dev.git
418 строки
11 KiB
C++
418 строки
11 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsHTMLEditUtils.h"
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#include "nsTextEditUtils.h"
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#include "nsString.h"
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#include "nsEditor.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMNodeList.h"
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#include "nsIDOMHTMLAnchorElement.h"
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///////////////////////////////////////////////////////////////////////////
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//
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PRBool
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nsHTMLEditUtils::IsBig(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("big"));
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}
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///////////////////////////////////////////////////////////////////////////
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//
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PRBool
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nsHTMLEditUtils::IsSmall(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("small"));
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}
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/********************************************************
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* helper methods from nsHTMLEditRules
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********************************************************/
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///////////////////////////////////////////////////////////////////////////
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// IsHeader: true if node an html header
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//
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PRBool
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nsHTMLEditUtils::IsHeader(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsHeader");
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nsAutoString tag;
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nsEditor::GetTagString(node,tag);
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tag.ToLowerCase();
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if ( (tag.EqualsWithConversion("h1")) ||
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(tag.EqualsWithConversion("h2")) ||
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(tag.EqualsWithConversion("h3")) ||
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(tag.EqualsWithConversion("h4")) ||
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(tag.EqualsWithConversion("h5")) ||
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(tag.EqualsWithConversion("h6")) )
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{
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsParagraph: true if node an html paragraph
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//
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PRBool
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nsHTMLEditUtils::IsParagraph(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("p"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsListItem: true if node an html list item
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//
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PRBool
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nsHTMLEditUtils::IsListItem(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsListItem");
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nsAutoString tag;
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nsEditor::GetTagString(node,tag);
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tag.ToLowerCase();
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if (tag.EqualsWithConversion("li") ||
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tag.EqualsWithConversion("dd") ||
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tag.EqualsWithConversion("dt"))
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{
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableElement: true if node an html table, td, tr, ...
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//
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PRBool
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nsHTMLEditUtils::IsTableElement(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null node passed to nsHTMLEditor::IsTableElement");
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nsAutoString tagName;
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nsEditor::GetTagString(node,tagName);
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if (tagName.EqualsWithConversion("table") || tagName.EqualsWithConversion("tr") ||
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tagName.EqualsWithConversion("td") || tagName.EqualsWithConversion("th") ||
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tagName.EqualsWithConversion("thead") || tagName.EqualsWithConversion("tfoot") ||
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tagName.EqualsWithConversion("tbody") || tagName.EqualsWithConversion("caption"))
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{
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTable: true if node an html table
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//
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PRBool
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nsHTMLEditUtils::IsTable(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("table"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableRow: true if node an html tr
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//
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PRBool
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nsHTMLEditUtils::IsTableRow(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("tr"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableCell: true if node an html td or th
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//
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PRBool
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nsHTMLEditUtils::IsTableCell(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsTableCell");
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nsAutoString tag;
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nsEditor::GetTagString(node,tag);
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tag.ToLowerCase();
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if (tag.EqualsWithConversion("td") || tag.EqualsWithConversion("th"))
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{
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTableCell: true if node an html td or th
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//
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PRBool
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nsHTMLEditUtils::IsTableCellOrCaption(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsTableCell");
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nsAutoString tag;
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nsEditor::GetTagString(node,tag);
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tag.ToLowerCase();
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if (tag.EqualsWithConversion("td") ||
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tag.EqualsWithConversion("th") ||
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tag.EqualsWithConversion("caption") )
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{
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsList: true if node an html list
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//
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PRBool
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nsHTMLEditUtils::IsList(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsList");
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nsAutoString tag;
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nsEditor::GetTagString(node,tag);
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tag.ToLowerCase();
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if ( (tag.EqualsWithConversion("dl")) ||
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(tag.EqualsWithConversion("ol")) ||
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(tag.EqualsWithConversion("ul")) )
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{
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsOrderedList: true if node an html ordered list
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//
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PRBool
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nsHTMLEditUtils::IsOrderedList(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("ol"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsUnorderedList: true if node an html unordered list
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//
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PRBool
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nsHTMLEditUtils::IsUnorderedList(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("ul"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsDefinitionList: true if node an html definition list
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//
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PRBool
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nsHTMLEditUtils::IsDefinitionList(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("dl"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsBlockquote: true if node an html blockquote node
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//
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PRBool
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nsHTMLEditUtils::IsBlockquote(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("blockquote"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsPre: true if node an html pre node
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//
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PRBool
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nsHTMLEditUtils::IsPre(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("pre"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsAddress: true if node an html address node
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//
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PRBool
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nsHTMLEditUtils::IsAddress(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("address"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsAnchor: true if node an html anchor node
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//
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PRBool
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nsHTMLEditUtils::IsAnchor(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("a"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsImage: true if node an html image node
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//
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PRBool
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nsHTMLEditUtils::IsImage(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("img"));
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}
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PRBool
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nsHTMLEditUtils::IsLink(nsIDOMNode *aNode)
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{
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if (!aNode) return PR_FALSE;
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nsCOMPtr<nsIDOMHTMLAnchorElement> anchor = do_QueryInterface(aNode);
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if (anchor)
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{
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nsAutoString tmpText;
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if (NS_SUCCEEDED(anchor->GetHref(tmpText)) && tmpText.GetUnicode() && tmpText.Length() != 0)
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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PRBool
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nsHTMLEditUtils::IsNamedAnchor(nsIDOMNode *aNode)
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{
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if (!aNode) return PR_FALSE;
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nsCOMPtr<nsIDOMHTMLAnchorElement> anchor = do_QueryInterface(aNode);
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if (anchor)
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{
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nsAutoString tmpText;
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if (NS_SUCCEEDED(anchor->GetName(tmpText)) && tmpText.GetUnicode() && tmpText.Length() != 0)
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsDiv: true if node an html div node
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//
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PRBool
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nsHTMLEditUtils::IsDiv(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("div"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsNormalDiv: true if node an html div node, without type = _moz
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//
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PRBool
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nsHTMLEditUtils::IsNormalDiv(nsIDOMNode *node)
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{
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if (IsDiv(node) && !nsTextEditUtils::HasMozAttr(node)) return PR_TRUE;
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsMozDiv: true if node an html div node with type = _moz
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//
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PRBool
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nsHTMLEditUtils::IsMozDiv(nsIDOMNode *node)
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{
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if (IsDiv(node) && nsTextEditUtils::HasMozAttr(node)) return PR_TRUE;
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsMailCite: true if node an html blockquote with type=cite
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//
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PRBool
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nsHTMLEditUtils::IsMailCite(nsIDOMNode *node)
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{
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NS_PRECONDITION(node, "null parent passed to nsHTMLEditUtils::IsMailCite");
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if (IsBlockquote(node))
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{
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nsCOMPtr<nsIDOMElement> bqElem = do_QueryInterface(node);
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nsAutoString typeAttrName; typeAttrName.AssignWithConversion("type");
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nsAutoString typeAttrVal;
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nsresult res = bqElem->GetAttribute(typeAttrName, typeAttrVal);
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typeAttrVal.ToLowerCase();
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if (NS_SUCCEEDED(res))
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{
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if (typeAttrVal.EqualsWithConversion("cite", PR_TRUE, 4))
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return PR_TRUE;
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}
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}
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return PR_FALSE;
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}
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///////////////////////////////////////////////////////////////////////////
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// IsTextarea: true if node is an html textarea node
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//
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PRBool
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nsHTMLEditUtils::IsTextarea(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("textarea"));
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}
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///////////////////////////////////////////////////////////////////////////
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// IsMap: true if node is an html map node
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//
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PRBool
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nsHTMLEditUtils::IsMap(nsIDOMNode *node)
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{
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return nsTextEditUtils::NodeIsType(node, NS_LITERAL_STRING("map"));
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}
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PRBool
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nsHTMLEditUtils::IsDescendantOf(nsIDOMNode *aNode, nsIDOMNode *aParent)
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{
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if (!aNode && !aParent) return PR_FALSE;
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if (aNode == aParent) return PR_FALSE;
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nsCOMPtr<nsIDOMNode> parent, node = do_QueryInterface(aNode);
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nsresult res;
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do
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{
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res = node->GetParentNode(getter_AddRefs(parent));
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if (NS_FAILED(res)) return PR_FALSE;
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if (parent.get() == aParent) return PR_TRUE;
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node = parent;
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} while (parent);
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return PR_FALSE;
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}
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PRBool
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nsHTMLEditUtils::IsLeafNode(nsIDOMNode *aNode)
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{
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if (!aNode) return PR_FALSE;
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PRBool hasChildren = PR_FALSE;
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aNode->HasChildNodes(&hasChildren);
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return !hasChildren;
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}
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